Hi everybody, where in your data model do you store that an experimenter is "Active"? In the experimenter table there's no field for this... Or is this done via Hibernate internals? If so, how? Cheers Matthias -- Matthias Dunda, Dipl.-Inform. c.a.r.u.s. IT AG Phone: (040) 5 14 35-0, intl.: +49.40.5 14 35-0